They all share the same dkim fingerprint.

My guess is you are just seeing a dns caching delay, wait a day, and or 
restart surgemail.

If that doesn't fix it double check the dns entry externally to see if 
you've really succeeded in setting the second one.  It's possible you've 
added it to a local dns but not the real dns for that domain....

Basically that error just means surgemail isn't getting/seeing the dns 
entry at all.

     ChrisP.

On 24/04/2019 11:28 AM, Randy Zumwalde wrote:
> Hi,
>
> I have two domains on my server and the first domain is successfully 
> using the following domainkey
> "default._domainkey.mydomain1.com v=DKIM1; p=the string of fingerprint 
> characters"
> after creating the dns record.
>
> My second domain is not working properly. I used the same as above 
> except for changing the mydomain1.com to mydomain2.com
> (ie. "default._domainkey.mydomain2.com v=DKIM1; p=the same string of 
> fingerprint characters")
>
> After entering the dns record for mydomain2.com it is not working and 
> SurgeMail give the following when I check the second domain.
> default._domainkey.mydomain2.com "{UNDEFINED}"  You need to add a DNS 
> record to use domain keys on the domain mydomain2.com
>
> Do I need to click the Regenerate Domainkey button for mydomain2.com 
> or do all domains on the server share the same domainkey fingerprint?
>
> Thanks,
> Randy
>